On condition that the front body shape of the projectile is unchangeable,a formula is obtained for determining the relation between the optimum boattail angle and the supersonic flight region.
在
丸前体外形和外界大气密度不变的条件下，提出了
丸炮口
赫数和顶点赫数确定旋转丸最
角的方法。
的)
部On condition that the front body shape of the projectile is unchangeable,a formula is obtained for determining the relation between the optimum boattail angle and the supersonic flight region.
在丸前体外形和外界大气密度不变的条件下，提出了丸炮口赫数和顶点赫数确定旋转丸最角的方法。
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